src/mesa/drivers/dri/i915/i915_context.h

   1  /**************************************************************************
   2  *
   3  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef I915CONTEXT_INC
  29 #define I915CONTEXT_INC
  30
  31 #include "intel_context.h"
  32
  33 #define I915_FALLBACK_TEXTURE            0x1000
  34 #define I915_FALLBACK_COLORMASK          0x2000
  35 #define I915_FALLBACK_STENCIL            0x4000
  36 #define I915_FALLBACK_STIPPLE            0x8000
  37 #define I915_FALLBACK_PROGRAM            0x10000
  38 #define I915_FALLBACK_LOGICOP            0x20000
  39 #define I915_FALLBACK_POLYGON_SMOOTH     0x40000
  40 #define I915_FALLBACK_POINT_SMOOTH       0x80000
  41
  42 #define I915_UPLOAD_CTX              0x1
  43 #define I915_UPLOAD_BUFFERS          0x2
  44 #define I915_UPLOAD_STIPPLE          0x4
  45 #define I915_UPLOAD_PROGRAM          0x8
  46 #define I915_UPLOAD_CONSTANTS        0x10
  47 #define I915_UPLOAD_FOG              0x20
  48 #define I915_UPLOAD_TEX(i)           (0x00010000<<(i))
  49 #define I915_UPLOAD_TEX_ALL          (0x00ff0000)
  50 #define I915_UPLOAD_TEX_0_SHIFT      16
  51
  52
  53 /* State structure offsets - these will probably disappear.
  54  */
  55 #define I915_DESTREG_CBUFADDR0 0
  56 #define I915_DESTREG_CBUFADDR1 1
  57 #define I915_DESTREG_CBUFADDR2 2
  58 #define I915_DESTREG_DBUFADDR0 3
  59 #define I915_DESTREG_DBUFADDR1 4
  60 #define I915_DESTREG_DBUFADDR2 5
  61 #define I915_DESTREG_DV0 6
  62 #define I915_DESTREG_DV1 7
  63 #define I915_DESTREG_SENABLE 8
  64 #define I915_DESTREG_SR0 9
  65 #define I915_DESTREG_SR1 10
  66 #define I915_DESTREG_SR2 11
  67 #define I915_DEST_SETUP_SIZE 12
  68
  69 #define I915_CTXREG_STATE4              0
  70 #define I915_CTXREG_LI                  1
  71 #define I915_CTXREG_LIS2                        2
  72 #define I915_CTXREG_LIS4                        3
  73 #define I915_CTXREG_LIS5                        4
  74 #define I915_CTXREG_LIS6                        5
  75 #define I915_CTXREG_IAB                 6
  76 #define I915_CTXREG_BLENDCOLOR0         7
  77 #define I915_CTXREG_BLENDCOLOR1         8
  78 #define I915_CTX_SETUP_SIZE             9
  79
  80 #define I915_FOGREG_COLOR               0
  81 #define I915_FOGREG_MODE0               1
  82 #define I915_FOGREG_MODE1               2
  83 #define I915_FOGREG_MODE2               3
  84 #define I915_FOGREG_MODE3               4
  85 #define I915_FOG_SETUP_SIZE             5
  86
  87 #define I915_STPREG_ST0        0
  88 #define I915_STPREG_ST1        1
  89 #define I915_STP_SETUP_SIZE    2
  90
  91 #define I915_TEXREG_MS2        0
  92 #define I915_TEXREG_MS3        1
  93 #define I915_TEXREG_MS4        2
  94 #define I915_TEXREG_SS2        3
  95 #define I915_TEXREG_SS3        4
  96 #define I915_TEXREG_SS4        5
  97 #define I915_TEX_SETUP_SIZE    6
  98
  99 #define I915_MAX_CONSTANT      32
 100 #define I915_CONSTANT_SIZE     (2+(4*I915_MAX_CONSTANT))
 101
 102
 103 #define I915_PROGRAM_SIZE      192
 104
 105
 106 /* Hardware version of a parsed fragment program.  "Derived" from the
 107  * mesa fragment_program struct.
 108  */
 109 struct i915_fragment_program {
 110    struct gl_fragment_program FragProg;
 111
 112    GLboolean translated;
 113    GLboolean params_uptodate;
 114    GLboolean on_hardware;
 115    GLboolean error;             /* If program is malformed for any reason. */
 116
 117    GLuint nr_tex_indirect;
 118    GLuint nr_tex_insn;
 119    GLuint nr_alu_insn;
 120    GLuint nr_decl_insn;
 121
 122
 123
 124
 125    /* TODO: split between the stored representation of a program and
 126     * the state used to build that representation.
 127     */
 128    GLcontext *ctx;
 129
 130    GLuint declarations[I915_PROGRAM_SIZE];
 131    GLuint program[I915_PROGRAM_SIZE];
 132
 133    GLfloat constant[I915_MAX_CONSTANT][4];
 134    GLuint constant_flags[I915_MAX_CONSTANT];
 135    GLuint nr_constants;
 136
 137    GLuint *csr;                 /* Cursor, points into program.
 138                                  */
 139
 140    GLuint *decl;                /* Cursor, points into declarations.
 141                                  */
 142
 143    GLuint decl_s;               /* flags for which s regs need to be decl'd */
 144    GLuint decl_t;               /* flags for which t regs need to be decl'd */
 145
 146    GLuint temp_flag;            /* Tracks temporary regs which are in
 147                                  * use.
 148                                  */
 149
 150    GLuint utemp_flag;           /* Tracks TYPE_U temporary regs which are in
 151                                  * use.
 152                                  */
 153
 154
 155
 156    /* Helpers for i915_fragprog.c:
 157     */
 158    GLuint wpos_tex;
 159    GLboolean depth_written;
 160
 161    struct {
 162       GLuint reg;               /* Hardware constant idx */
 163       const GLfloat *values;    /* Pointer to tracked values */
 164    } param[I915_MAX_CONSTANT];
 165    GLuint nr_params;
 166
 167
 168
 169
 170    /* Helpers for i915_texprog.c:
 171     */
 172    GLuint src_texture;          /* Reg containing sampled texture color,
 173                                  * else UREG_BAD.
 174                                  */
 175
 176    GLuint src_previous;         /* Reg containing color from previous
 177                                  * stage.  May need to be decl'd.
 178                                  */
 179
 180    GLuint last_tex_stage;       /* Number of last enabled texture unit */
 181
 182    struct vertex_buffer *VB;
 183 };
 184
 185
 186
 187
 188
 189
 190 struct i915_texture_object
 191 {
 192    struct intel_texture_object intel;
 193    GLenum lastTarget;
 194    GLboolean refs_border_color;
 195    GLuint Setup[I915_TEX_SETUP_SIZE];
 196 };
 197
 198 #define I915_TEX_UNITS 8
 199
 200
 201 struct i915_hw_state {
 202    GLuint Ctx[I915_CTX_SETUP_SIZE];
 203    GLuint Buffer[I915_DEST_SETUP_SIZE];
 204    GLuint Stipple[I915_STP_SETUP_SIZE];
 205    GLuint Fog[I915_FOG_SETUP_SIZE];
 206    GLuint Tex[I915_TEX_UNITS][I915_TEX_SETUP_SIZE];
 207    GLuint Constant[I915_CONSTANT_SIZE];
 208    GLuint ConstantSize;
 209    GLuint Program[I915_PROGRAM_SIZE];
 210    GLuint ProgramSize;
 211    GLuint active;               /* I915_UPLOAD_* */
 212    GLuint emitted;              /* I915_UPLOAD_* */
 213 };
 214
 215 #define I915_FOG_PIXEL  2
 216 #define I915_FOG_VERTEX 1
 217 #define I915_FOG_NONE   0
 218
 219 struct i915_context
 220 {
 221    struct intel_context intel;
 222
 223    GLuint last_ReallyEnabled;
 224    GLuint vertex_fog;
 225
 226    struct i915_fragment_program tex_program;
 227    struct i915_fragment_program *current_program;
 228
 229    struct i915_hw_state meta, initial, state, *current;
 230 };
 231
 232
 233 typedef struct i915_context *i915ContextPtr;
 234 typedef struct i915_texture_object *i915TextureObjectPtr;
 235
 236 #define I915_CONTEXT(ctx)       ((i915ContextPtr)(ctx))
 237
 238
 239
 240 #define I915_STATECHANGE(i915, flag)                                    \
 241 do {                                                                    \
 242    if (0) fprintf(stderr, "I915_STATECHANGE %x in %s\n", flag, __FUNCTION__);   \
 243    INTEL_FIREVERTICES( &(i915)->intel );                                        \
 244    (i915)->state.emitted &= ~(flag);                                    \
 245 } while (0)
 246
 247 #define I915_ACTIVESTATE(i915, flag, mode)                      \
 248 do {                                                            \
 249    if (0) fprintf(stderr, "I915_ACTIVESTATE %x %d in %s\n",     \
 250                   flag, mode, __FUNCTION__);                    \
 251    INTEL_FIREVERTICES( &(i915)->intel );                                \
 252    if (mode)                                                    \
 253       (i915)->state.active |= (flag);                           \
 254    else                                                         \
 255       (i915)->state.active &= ~(flag);                          \
 256 } while (0)
 257
 258
 259 /*======================================================================
 260  * i915_vtbl.c
 261  */
 262 extern void i915InitVtbl( i915ContextPtr i915 );
 263
 264
 265
 266 #define SZ_TO_HW(sz)  ((sz-2)&0x3)
 267 #define EMIT_SZ(sz)   (EMIT_1F + (sz) - 1)
 268 #define EMIT_ATTR( ATTR, STYLE, S4, SZ )                                \
 269 do {                                                                    \
 270    intel->vertex_attrs[intel->vertex_attr_count].attrib = (ATTR);       \
 271    intel->vertex_attrs[intel->vertex_attr_count].format = (STYLE);      \
 272    s4 |= S4;                                                            \
 273    intel->vertex_attr_count++;                                          \
 274    offset += (SZ);                                                      \
 275 } while (0)
 276
 277 #define EMIT_PAD( N )                                                   \
 278 do {                                                                    \
 279    intel->vertex_attrs[intel->vertex_attr_count].attrib = 0;            \
 280    intel->vertex_attrs[intel->vertex_attr_count].format = EMIT_PAD;     \
 281    intel->vertex_attrs[intel->vertex_attr_count].offset = (N);          \
 282    intel->vertex_attr_count++;                                          \
 283    offset += (N);                                                       \
 284 } while (0)
 285
 286
 287
 288 /*======================================================================
 289  * i915_context.c
 290  */
 291 extern GLboolean i915CreateContext( const __GLcontextModes *mesaVis,
 292                                     __DRIcontextPrivate *driContextPriv,
 293                                     void *sharedContextPrivate);
 294
 295
 296 /*======================================================================
 297  * i915_texprog.c
 298  */
 299 extern void i915ValidateTextureProgram( i915ContextPtr i915 );
 300
 301
 302 /*======================================================================
 303  * i915_debug.c
 304  */
 305 extern void i915_disassemble_program( const GLuint *program, GLuint sz );
 306 extern void i915_print_ureg( const char *msg, GLuint ureg );
 307
 308
 309 /*======================================================================
 310  * i915_state.c
 311  */
 312 extern void i915InitStateFunctions( struct dd_function_table *functions );
 313 extern void i915InitState( i915ContextPtr i915 );
 314 extern void i915_update_fog(GLcontext *ctxx);
 315
 316
 317 /*======================================================================
 318  * i915_tex.c
 319  */
 320 extern void i915UpdateTextureState( intelContextPtr intel );
 321 extern void i915InitTextureFuncs( struct dd_function_table *functions );
 322 extern intelTextureObjectPtr i915AllocTexObj( struct gl_texture_object *texObj );
 323
 324 /*======================================================================
 325  * i915_metaops.c
 326  */
 327 extern GLboolean
 328 i915TryTextureReadPixels( GLcontext *ctx,
 329                           GLint x, GLint y, GLsizei width, GLsizei height,
 330                           GLenum format, GLenum type,
 331                           const struct gl_pixelstore_attrib *pack,
 332                           GLvoid *pixels );
 333
 334 extern GLboolean
 335 i915TryTextureDrawPixels( GLcontext *ctx,
 336                           GLint x, GLint y, GLsizei width, GLsizei height,
 337                           GLenum format, GLenum type,
 338                           const struct gl_pixelstore_attrib *unpack,
 339                           const GLvoid *pixels );
 340
 341 extern void
 342 i915ClearWithTris( intelContextPtr intel, GLbitfield mask,
 343                    GLboolean all, GLint cx, GLint cy, GLint cw, GLint ch);
 344
 345
 346 extern void
 347 i915RotateWindow(intelContextPtr intel, __DRIdrawablePrivate *dPriv,
 348                  GLuint srcBuf);
 349
 350 /*======================================================================
 351  * i915_fragprog.c
 352  */
 353 extern void i915ValidateFragmentProgram( i915ContextPtr i915 );
 354 extern void i915InitFragProgFuncs( struct dd_function_table *functions );
 355
 356 #endif
 357